... meter Mild steel hot rolled I beam A36,SS400,Q235,ST37-2 I beam steel,hot rolled I beam SS400,mild steel I beam1> Material : SS 400 ... , ST37-2 , A36, S235 JRG1, Q235, Q345 ... : 80*46*3.8mm-600*220*12mm5>Packing: bundles or knitting bag or according to the requirement6>Standard : GB/T 700-1988 ...